Table of contentsTable of contents

Introduction to computer graphicsIntroduction to computer graphics Types of Computer GraphicsTypes of Computer Graphics Difference B/W Active And Passive Difference B/W Active And Passive

GraphicsGraphics Application Of Computer GraphicsApplication Of Computer Graphics

Introduction To Computer GraphicsIntroduction To Computer Graphics

Refers to creation, Storage and Refers to creation, Storage and manipulation of pictures and drawing manipulation of pictures and drawing using a digital computer.using a digital computer.

Effective tool for presenting Effective tool for presenting information.information.

Computer aided design.Computer aided design. Computer aided manufacturing.Computer aided manufacturing.

Types of computer graphicsTypes of computer graphics

Simple orSimple or– Passive Computer GraphicsPassive Computer Graphics

Interactive or Interactive or passive computer graphicspassive computer graphics

Difference b/w Active and passive Difference b/w Active and passive graphicsgraphics

PassivePassive ControlControl

– No ControlNo Control CommunicationCommunication

– One Way One Way CommunicationCommunication

InteractionInteraction– No Interaction b/w User No Interaction b/w User

and H/Wand H/W Earlier supportedEarlier supported Motion & UpdationMotion & Updation

– No facilityNo facility

ActiveActive ControlControl

– Dynamic natureDynamic nature CommunicationCommunication

– 2-Way Communication2-Way Communication InteractionInteraction

– High bandwidth user High bandwidth user interactioninteraction

Modern ApplicationsModern Applications Motion & UpdationMotion & Updation

– 2-D, 3-D 2-D, 3-D TransformationsTransformations

Applications of Computer GraphicsApplications of Computer Graphics

User InterfaceUser Interface Interactive Plotting in Science Interactive Plotting in Science

Business and technology.Business and technology. Office Automation & E-Publishing.Office Automation & E-Publishing.

Contd..Contd..

Process ControlProcess Control CartographyCartography Simulation, Animation for Scientific Simulation, Animation for Scientific

Visualization and Entertainment.Visualization and Entertainment. Art and CommerceArt and Commerce

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– Computer Aided Computer Aided DesignDesign

– Presentation GraphicsPresentation Graphics

– EntertainmentEntertainment

– Education and Education and TrainingTraining

– Image ProcessingImage Processing

– Graphical User Graphical User InterfacesInterfaces

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COMPUTER AIDED DESIGNCOMPUTER AIDED DESIGN

Circuit DrawingsCircuit Drawings Real-time AnimationsReal-time Animations Virtual-Reality EnvironmentsVirtual-Reality Environments Architectural DrawingsArchitectural Drawings

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COMPUTER AIDED DESIGN

Credit: MIKE JUSTICE, UNIVERSITY OF MIAMI

SCHOOL OF ARCHITECTUREDate Created: 1/5/1999

Software: AutoCAD and 3D Studio Max R2

Towards Virtual Manufacturing

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PRESENTATION GRAPHICSPRESENTATION GRAPHICS

Presentation Graphics is representing Presentation Graphics is representing descriptions and facts using graphs.descriptions and facts using graphs.

Various Graphs such as Piechart, Various Graphs such as Piechart, bargraphs line charts are used. bargraphs line charts are used.

Used to summarize financial, Used to summarize financial, statistical, mathematical, scientific statistical, mathematical, scientific data etc.data etc.

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VISUALIZATIONVISUALIZATION

Scientific VisualizationScientific Visualization Business VisualizationBusiness Visualization Computer graphics makes vast quantities of data accessible. Computer graphics makes vast quantities of data accessible.

Numerical simulations frequently produce millions of data Numerical simulations frequently produce millions of data values. values.

Similarly, satellite-based sensors amass data at rates Similarly, satellite-based sensors amass data at rates beyond our abilities to interpret them by any other means beyond our abilities to interpret them by any other means than visually.than visually.

Mathematicians use computer graphics to explore abstract Mathematicians use computer graphics to explore abstract and high-dimensional functions and spaces.and high-dimensional functions and spaces.

Physicists can use computer graphics to transcend the limits Physicists can use computer graphics to transcend the limits of scale. of scale.

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IMAGE PROCESSINGIMAGE PROCESSING

Manipulating images with a computerManipulating images with a computer   Image processing generally involves three steps:Image processing generally involves three steps:

– Import an image with an optical scanner or directly through Import an image with an optical scanner or directly through digital photography. digital photography.

– Manipulate the image in some way. This stage can include Manipulate the image in some way. This stage can include image enhancement and data compression.image enhancement and data compression.

For example: Image processing can be used to reduce For example: Image processing can be used to reduce the noise (that infernal spec that comes from nowhere) in the noise (that infernal spec that comes from nowhere) in an image. an image. – Output the result. The result is the image altered in some way.Output the result. The result is the image altered in some way.

  

EDUCATION AND TRAININGEDUCATION AND TRAINING Computer Graphics is almost Computer Graphics is almost

used in every field to teach used in every field to teach and train and train

MedicineMedicine Human Anatomy Human Anatomy

ModelsModels

EngineeringEngineering Animated Models : Animated Models :

Explaining the working of Explaining the working of different modelsdifferent models

Fashion DesigningFashion Designing Designing and Designing and

Creating new PatternsCreating new Patterns

ENTERTAINMENTENTERTAINMENT

Motion PicturesMotion Pictures Music VideosMusic Videos Television ShowsTelevision Shows GamesGames

Coming LecturesComing Lectures

Input devicesInput devices– KeyboardKeyboard– Touch PanelTouch Panel– Light penLight pen– Track ballTrack ball– Data GloveData Glove– DigitizersDigitizers– Image ScannerImage Scanner– MouseMouse– Voice SystemsVoice Systems